I want to express my appreciation for Mr. Turnbull's questions on sustainability. As we look to the future, retrofitting and looking at how we're going to sustain moving forward is really important. You talked a bit about the success that you feel we've had in this so far. How is that measured, and how is that reported back to the larger public? Are we seeing an articulation of some of these successes, as you've framed them, to the rest of the Canadian public to look at leadership in this area?